/* 主页的代码 */
.top-nav {
  height: 25px;
  background-color: #111;
  color: #fff;
  font-size: 12px;
}

.top-nav-ul{
  height: 25px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.top-nav li{
  margin-left: 20px;
}